Edward E. Rose

English trout fisher Rudolf Rassendyll is about the only tourist not coming for the coronation of Central-European King Rudolf V at Strelsau, but happens to be a distance relative and is approached on account of their canning resemblance to stand in for the drunk king... (imdb)

This is a classic swashbuckler. Rudolph Rassendyll, Rudolf V's identical distant cousin, is asked to risk his life and impersonate the would-be king when his relative is kidnapped before his impending coronation. If Rudolf V isn't present at the ceremony, he will forfeit the crown to his younger brother. Complications ensue when Princess Flavia, the cousin's betrothed, begins to notice a "personality change" in her fiancé. (imdb)

This epic-scale silent adaptation of the popular novel by Anthony Hope concerns Rudolph (Lewis S. Stone), a member of the royal family of Ruritania who is about to be crowned King. However, his conniving and ill-tempered brother Rupert (Ramon Novarro) has designs on the throne, and he poisons his brother shortly before his coronation... (All Movie Guide)

Ruth Raymond works on the switchboard and her boyfriend is John Blake. It has taken 14 years, but a detective named Murray has found her and confirmed that she is Ruth Carson. As a child, she was kidnaped by her uncle and is the daughter of a wealthy railroad tycoon. Under the watchful eye of Godfrey D. Scott, an attempt on her life is foiled. But a fake telegram put her on a private railroad car heading east. It is in this car that her life is again in danger and people are murdered. (imdb)

An English tourist poses as his royal double to foil revolutionary kidnappers (imdb)